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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (1543): Trillion Shaped Gems Clear All
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ID: 4175741 pcs
3.74ct Topaz
10.06mm x 9.85mm x 5.78mm
USD 26.18
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ID: 3727814 pcs
1.62ctw Sapphire
4.33mm x 4.32mm x 2.83mm
USD 48.08
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ID: 4032171 pcs
24.52ct Serpentine
25.32mm x 25.11mm x 7.79mm
USD 19.62
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ID: 4374231 pcs
0.58ct Topaz
6.17mm x 6.07mm x 2.60mm
USD 2.90
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ID: 3306944 pcs
1.48ctw Sapphire
4.22mm x 4.16mm x 2.81mm
USD 66.60
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ID: 3889221 pcs
1.42ct Spessartite Garnet
7.62mm x 5.73mm x 4.74mm
USD 61.40
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ID: 4288366 pcs
2.01ctw Topaz
4.18mm x 4.10mm x 2.99mm
USD 10.05
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ID: 35668110 pcs
3.73ctw Sapphire
4.29mm x 4.20mm x 2.49mm
USD 93.25
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ID: 4323256 pcs
2.93ctw Rhodolite Garnet
5.07mm x 4.98mm x 2.90mm
USD 23.44
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ID: 3307316 pcs
2.51ctw Sapphire
4.15mm x 4.11mm x 2.89mm
USD 129.14
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ID: 37550610 pcs
2.37ctw Sapphire
3.65mm x 3.60mm x 2.24mm
USD 70.39
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ID: 3362366 pcs
1.39ctw Tourmaline
4.13mm x 4.07mm x 2.47mm
USD 30.65
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ID: 4241031 pcs
1.74ct Tanzanite
7.81mm x 7.73mm x 4.98mm
USD 201.40
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ID: 4139912 pcs
5.24ctw Topaz
9.04mm x 9.03mm x 5.20mm
USD 36.68
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ID: 37055315 pcs
8.80ctw Amethyst
6.94mm x 5.91mm x 3.53mm
USD 61.60
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ID: 42315410 pcs
4.89ctw Rhodolite Garnet
5.13mm x 5.02mm x 2.95mm
USD 39.12
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ID: 4059601 pcs
4.29ct Apatite
11.01mm x 9.25mm x 7.11mm
USD 413.90
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ID: 3382331 pcs
7.42ct Ruby-Zoisite
12.39mm x 11.88mm x 7.51mm
USD 18.55
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ID: 4171251 pcs
4.12ct Topaz
10.20mm x 10.06mm x 6.23mm
USD 26.00
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ID: 3742325 pcs
2.76ctw Sapphire
5.23mm x 5.11mm x 2.72mm
USD 81.83
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ID: 3576356 pcs
1.53ctw Sapphire
4.17mm x 4.10mm x 1.87mm
USD 116.75
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Trillion Shaped Gems
When it comes to gemstones, shape and cut are are often used interchangeably. The reason is because the difference between the two isn't always obvious. Shape refers to the overall outline of a stone, while 'cut' refers the actual style, process or technique used to work the rough into finished gemstone pieces. Historically, a trilliant gem exhibits the basic trilliant design, featuring 43 facets cut into a triangular shape gemstone that has been worked into 1:1 ratio and cut with 43 facets. The 43 facets are based on the 'brilliant-cut' in order to maximize 'brilliance'. Like other brilliant cuts, the equilateral form of a well-cut trilliant gem should return a substantial degree of light and color to the eye. The trillion cutting style was originally introduced by the Asscher brothers (Asscher-cut) and was trademarked in 1962 by Henry Meyer Diamond Company of New York. Since the expiration of their 'trillion' patent, the term can be used to refer to all triangular shaped gems, even those which are not faceted.

Many trillions today are step-cut, scissor-cut, plain-cut, mixed-cut with undulating surfaces, and trillion gemstones are even cut en cabochon, featuring a flat bottom with a low or high dome depending on the type of gem. As long as the gemstone has a face-up outline or shape which resembles a triangle, then it can be described as a trillion-shaped gemstone. Gemstones like zircon, spinel, diamond, aquamarine, beryl and white sapphire are often cut as trillions to maximize brilliance, while darker gemstones such as tanzanite, spessartite garnet, rhodolite garnet and amethyst are given a trilliant cut in order to lighten and brighten color (rather than focusing on brilliance). Since most diamond-cut styles are modified for colored stones, many colored stone dealers use alternative terms that refer to shape rather than cut-style.
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Size and Weight

Gems are always measured in Millimeter (mm)

Dimensions are given as;
length x width x depth,
except for round stones which are;
diameter x depth

Select gems by size, not by weight!
Gem varieties vary in density, so carat weight is not a good indication of size

Note: 1ct = 0.2g

Size Comparison Chart